RHS SCIENCE DNA Replication Animation factory.

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Presentation transcript:

RHS SCIENCE DNA Replication Animation factory

RECALL DNA is made up of a series of monomers called NUCLEOTIDES

The backbone of the DNA chain is formed by the Sugar Phosphate http://nanopedia.cwru.edu/image/DNA%20structure.jpg

The “rungs” of the ladder are made of bases A - T G - C http://nanopedia.cwru.edu/image/DNA%20structure.jpg The bases are held together by hydrogen bonds

The 2 DNA chains are joined together forming a http://nanopedia.cwru.edu/image/DNA%20structure.jpg Double helix

DNA Replication Is when DNA is copied into DNA Occurs in the nucleus

DNA Replication DNA unwinds into 2 strands Each strand acts as a template for building a new strand

Unwound strands produced by breaking H bonds between base pairs New strands made by adding nucleotides

DNA Replication DNA polymerase joins free nucleotides to the template and assembles each into strands

DNA Replication

SELF TEST Which bonds are broken during replication? Hydrogen bonds How many DNA molecules in total would there be after DNA replication occurs? 2

BYE . . . .